Hi Steve, I'm going up to the site Sunday and I will likely not
pressureize it, But I will be thinking about the suggestion for a
good while. I would consider sense the half inch hardline is only
thirty feet long to the sky hook, running a small airline to it and
using a aquerium (?) pump to pressurize it. BUT I Will likely use
some Scotch brand tape that I have that "fuses" to it self to water
proof the fiber glass joints after drying it out with a trusty hair
dryer. I wish I had about 5 pounds of "Silica JELL".
Oh, while I was consulting for ANDREW Corp, some years ago I had a
chance to take a look at their sweet little "HELIAX" pressureizer.
It had a small GATES compresser mounted on a chassis and sucked air
in through two chambers of "Silica Jell" and pumped it into the hard
line. It worked really well.
73
AC0Y
--- In Repeater-Builder@yahoogroups.com, "Steve Grantham"
<[EMAIL PROTECTED]> wrote:
> Coy.. I was just joking.. However, if you could get an air
connector
> mounted on the antenna base somewhere and put pressure on it, then
you could
> soap the antenna and look for bubbles. Once you get the antenna
sealed,
> then perhaps you could charge it, or at least let it weep through
the air
> fitting if it was positioned properly to act as a drain.
>
> Tight transmission lines are often pressurized with nitrogen.
Microwave and
> cellular lines and antennae are often pressurized using dry air. A
> dehydrator, a compressor with a dryer, won't run out and need
replacement
> like a nitrogen bottle would, and is more suited to leaky antenna
systems.
> As long as you keep positive pressure on the line... no worrys...
concerning
> water ingress anyway.
>
> Seriously, I don't know much about the Diamond X500 (dimensions,
etc.), but
> if you can put an air fitting on it, then you can probably fix
it.. Perhaps
> you can go to the auto parts or the tire store to get an air
fitting. They
> pressurize tires, don't they? (Let me know if you spin balance
it.. hi hi!)
>
> Steve
>
> ----- Original Message -----
> From: "Coy Hilton" <[EMAIL PROTECTED]>
> To: <Repeater-Builder@yahoogroups.com>
> Sent: Friday, October 15, 2004 8:19 PM
> Subject: [Repeater-Builder] Re: Diamond X500
>
>
> >
> >
> > Steve, Great thinking !! sounds like something a thinker, or
> > engineer would come up with. I would even take this one under
> > advisement.
> > 73
> > AC0Y
> >
> >
> > --- In Repeater-Builder@yahoogroups.com, "Steve Grantham"
> > <[EMAIL PROTECTED]> wrote:
> > > As long as we're engineering solutions... (hi hi!..) How about
> > using an
> > > air-dielectric cable and pressurizing the Diamond radome with
an
> > > inter-connecting jumper (hose) using a dehydrator... Positive
air
> > pressure,
> > > air egress, can prevent water ingress..
> > >
> > > 73 & HI!
> > > Steve
> > >
> > > ----- Original Message -----
> > > From: "Brent" <[EMAIL PROTECTED]>
> > > To: <Repeater-Builder@yahoogroups.com>
> > > Sent: Friday, October 15, 2004 8:02 PM
> > > Subject: Re: [Repeater-Builder] Diamond X500
> > >
> > >
> > > >
> > > > Good one Neil, or use it for a Rain gauge. j/k
> > > > I have tried to keep moisture out of those antenna and have
had
> > no luck,
> > > do
> > > > to them no having a good vent hole at the bottom to release
any
> > moisture.
> > > So
> > > > i drilled a little hole near the bottom of the antenna and
than
> > installed
> > > a
> > > > small hose like a fishing tank pump hose about 4-5" long and
> > routed it
> > > > towards the bottom for a drain. it seems to have helped..
> > > > Brent
> > > >
> > > > ----- Original Message -----
> > > > From: "Neil McKie" <[EMAIL PROTECTED]>
> > > > To: <Repeater-Builder@yahoogroups.com>
> > > > Sent: Friday, October 15, 2004 7:54 PM
> > > > Subject: Re: [Repeater-Builder] Diamond X500
> > > >
> > > >
> > > > >
> > > > >
> > > > > Sure !!
> > > > >
> > > > > Install it inside the building ...
> > > > >
> > > > > Neil
> > > > >
> > > > >
> > > > > Coy Hilton wrote:
> > > > > >
> > > > > > Hi Gang,
> > > > > > Anyone know anything about keeping water out of a Diamond
> > X500
> > > > > > antenna for a repeater use, Or any other suggestions,
Short
> > of
> > > > > > heaving it off the side of the building.
> > > > > > 73
> > > > > > AC0Y
> > > > > >
> > > > > >
> > > > > > Yahoo! Groups Links
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